This is the 14949th most frequent Russian word.
подлинность
Authenticity.
Here, "подлинность" denotes the genuineness of an item, in this case, whether a work of art is genuine or fake.
Подлинность произведения искусства вызвала сомнения у экспертов.
The authenticity of the artwork raised doubts among the experts.
In this example, "подлинность" describes the truthfulness and accuracy of conveyed information.
Важно сохранить подлинность передаваемой информации.
It's important to preserve the authenticity of the communicated information.
In this sentence, "подлинность" is used to express the concept of authenticity or genuineness regarding an object, specifically a document.